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Different hair growth phases affect how follicles respond to X-rays, and hormones like testosterone and dihydrotestosterone play a key role in baldness; transplanted hair can grow on bald scalp areas.

VEGF helps hair grow and determines follicle size by increasing blood vessel growth.

Stem cells are crucial for skin repair and new treatments for chronic wounds.

Minoxidil boosts growth factor in hair cells, potentially promoting hair growth.

Hair, teeth, and mammary glands develop similarly at first but use different genes later.

No treatment fully prevents hair loss from chemotherapy yet.

Using human fat tissue derived stem cells in micrografts can safely and effectively increase hair density in people with hair loss.

Male hormones are important for hair and oil gland development and can cause conditions like excessive hair growth and acne.

Scientists found a way to grow human hair cells in a lab that can create new hair when transplanted.

Hair growth is influenced by interactions between skin layers, growth factors, and hormones, but the exact mechanisms are not fully understood.

Improving the environment and cell interactions is key for creating human hair in the lab.

Foxi3 expression in developing teeth and hair is controlled by the ectodysplasin pathway.

Scientists created early-stage hairs from mouse cells that grew into normal, pigmented hair when implanted into other mice.

Using a gene therapy with the Sonic Hedgehog gene helps mice regrow hair faster after losing it from chemotherapy.

The protein SLC1A3 is important for activating skin stem cells and is necessary for normal hair and skin growth in mice.

Using a special stem cell formula on the scalp once a month for six months helped people with hair loss grow more hair.

Different hair growth problems are caused by genetic issues or changes in hair growth cycles, and new treatments are being developed.

Nd:YAG laser can reduce hair with multiple treatments, but permanent removal isn't guaranteed.

The long-pulsed alexandrite laser is effective for hair reduction, particularly for light-skinned individuals with dark hair, but caution is needed for darker skin.

DHT stops hair regrowth in mice, similar to human hair loss.

Permanent hair removal is hard, but using longer laser pulses at lower power might improve results.

Cat color patterns are determined early in development by gene expression and epidermal changes, with the Dickkopf 4 gene playing a crucial role.

The document concludes that unruly hair can be congenital or acquired, often lacks specific treatments, and can be managed with oils and short hairstyles.

The document concludes that while "hair follicle cloning" shows promise for unlimited donor hair, it faces challenges with consistency and safety in humans.

AGA progression involves increased lipid synthesis, electron transport, and hair follicle miniaturization.

Adult stem cells with Tp63 can form hair and skin cells when placed in new skin, showing they have hidden abilities for skin repair.

The document concludes that regenerating functional ectodermal organs like teeth and hair is promising for future therapies.

Androgens can both increase body hair and cause scalp hair loss.

Using microscopes in hair transplants reduces follicle damage.

The document concludes that hair biology is complex and there are still unanswered questions about hair loss and follicle changes.